Active Directory System Discovery. Active Directory System Discovery retrieves details about the computer, such as computer name, Active Directory container name, IP address, and Active Directory site. It generates a DDR for each computer it discovers in Active Directory.

Active Directory container and location (local domain, local forest, custom LDAP or GC query) Polling schedule

Active Directory System Group Discovery. Active Directory System Group Discovery works only for systems that are already discovered and assigned to the local primary site and any direct child secondary sites. Active Directory System Group Discovery is not available for secondary sites. If a resource has been discovered and is assigned to the Configuration Manager 2007 site, Active Directory System Group Discovery extends other discovery methods by retrieving details such as organizational unit, global groups, universal groups, and nested groups.

Active Directory container and location (local domain, local forest, custom LDAP or GC query) Polling schedule

Active Directory User Discovery. The Active Directory User Discovery method discovers users and the user groups of which they are members. Active Directory User Discovery returns more information from Active Directory domains than Windows User Account Discovery or Windows User Group Discovery and it continues to work with those domains when you switch them to native mode.

Active Directory container and location (local domain, local forest, custom LDAP or GC query) Polling schedule

Network Discovery. The Network Discovery method can be configured to discover the topology of your network, as well as potential client computer information. By querying specified network routers, network discovery retrieves information about the network topology and routers in use. Using discovered router information, or specified Microsoft DHCP server IP address lease information, network discovery can also discover potential client computer information such as IP address and operating system version.

Note
Topology information collected depends on the number of router hops specified on the SNMP tab of network discovery properties. If you have a large network, you might want to limit the number of router hops searched to reduce your network traffic. A maximum of 5000 potential clients per discovery is recommended

In Configuration Manager 2007 SP1 sites with the out of band service point installed, management controllers for out of band management can also be discovered. For more information, see How to Discover Computers with Management Controllers.

Type of Discovery (Topology, Topology and client, Topology, client, and client operating system), IP subnets to search, and Microsoft DHCP server names to query.